73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
#include "usart.hpp"
|
|
|
|
#include <stdint.h>
|
|
|
|
#include <string_view>
|
|
|
|
#include "pindef.hpp"
|
|
#include "stm32f4xx_hal_uart.h"
|
|
|
|
namespace driver::usart {
|
|
|
|
Usart::Usart(USART_TypeDef* usart, uint32_t baudRate, uint32_t wordLength, uint32_t stopBits,
|
|
uint32_t parity, uint32_t mode, uint32_t hwFlowCtl, uint32_t overSampling)
|
|
: mHandle{.Instance = usart,
|
|
.Init{.BaudRate = baudRate,
|
|
.WordLength = wordLength,
|
|
.StopBits = stopBits,
|
|
.Parity = parity,
|
|
.Mode = mode,
|
|
.HwFlowCtl = hwFlowCtl,
|
|
.OverSampling = overSampling}} {}
|
|
|
|
bool Usart::init() {
|
|
GPIO_InitTypeDef GPIO_InitStruct;
|
|
if (mHandle.Instance == USART2) {
|
|
// USART2 clock enable
|
|
__HAL_RCC_USART2_CLK_ENABLE();
|
|
__HAL_RCC_GPIOA_CLK_ENABLE();
|
|
// USART2 GPIO Configuration
|
|
// PA2 -> USART2_TX
|
|
// PA3 -> USART2_RX
|
|
|
|
GPIO_InitStruct.Pin = USART_TX_Pin | USART_RX_Pin;
|
|
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
|
|
GPIO_InitStruct.Pull = GPIO_NOPULL;
|
|
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
|
|
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
|
|
}
|
|
|
|
return HAL_UART_Init(&mHandle) != HAL_OK;
|
|
}
|
|
|
|
void Usart::deinit() {
|
|
if (mHandle.Instance == USART2) {
|
|
/* Peripheral clock disable */
|
|
__HAL_RCC_USART2_CLK_DISABLE();
|
|
|
|
HAL_GPIO_DeInit(GPIOA, USART_TX_Pin | USART_RX_Pin);
|
|
}
|
|
}
|
|
|
|
void Usart::print(const std::string_view str) {
|
|
tx(str);
|
|
};
|
|
|
|
void Usart::println(const std::string_view str) {
|
|
print(str);
|
|
tx("\r\n");
|
|
}
|
|
|
|
void Usart::tx(const std::string_view range) {
|
|
for (uint32_t pt{0}; pt <= range.size(); pt += TX_BUFSIZE) {
|
|
uint8_t txLen{TX_BUFSIZE};
|
|
if (range.length() < TX_BUFSIZE) {
|
|
txLen = range.length();
|
|
}
|
|
HAL_UART_Transmit(&mHandle, reinterpret_cast<const uint8_t*>(range.begin() + pt), txLen,
|
|
TX_TIMEOUT_MS);
|
|
}
|
|
};
|
|
|
|
} // namespace driver::usart
|